Detachable tire-tread.



G. A. 64 E. HAGSTROM.

DET ACHABLE TIRE TREAD. APPLICATION FILED} OCT. 5, 1914.

1 1 73,42%. Patented Feb. 29, 1916.

WITNESSES:

' INVENTORY. 2 .Ezy: Gzuiaf g/Lifagkyirm dlZiEi/ZWZZKZ H g/fi GUSTAF A. I-IAGSTROM, OF KANSAS CITY, MISSOURI, AND EMANUEL HAGSTROM, OF

CHICAGO, ILLINOIS; SAID EMANUEL HAGSTROlVI ASSIGNOR T0 SAID GUSTAF A.

HAGSTROM.

Application filed October 5, 1914.

T 0 all whom it may concern:

Be-it known that we, GUSTAF A. HAG- STROM and EMANUEL HAosTnoM, citizens of the United States, residing at Kansas City and Chicago, in the co'untiesof Jackson and Cook and States of Missouri and Illinois, respectively, have invented certain new and useful Improvements in Detachable Tire- Treads, of which the following is a specification.

Our invention relates to detachable tire treads, and one object is to provide a simple and inexpensive tread which can be readily applied to or removed from a tire.

A further object is to provide a lighter tread than usual, without sacrificing the strength or durability of said tread.

Another object is to provide a tread having openings therein, so that water, sand, or other deleterious substances working in between the tire and the tread may pass out through said openings before damaging the tire. y

Other objects. of the invention will hereinafter appear, and in order that said invention maybe fully understood, reference will now be made to the accompanying drawing, in which:

Figure 1 is a broken side elevation of our tire tread in position upon a tire. Fig. 2 is a broken plan view, enlarged, of the tire tread removed from the tire. Fig. 3 is an irregular cross section, enlarged, on line .lIllTI of Fig. 1. Fig. i is broken detail of a strip' of material constituting a part of the tire tread.

A. designates a pneumatic tire of theclcnchcr-ti pe mounted upon a rim B 1 designates the tire tread constituting the present invention. Said tire tread is of suflicient width t-t come well over the sides of the tire A, to protect said sides when traveling in ruts, etc. Tread 1 consists of a plurality of'strips 2 braided together as shown on the drawing. Strips 2 may consist of leather, fabric, or other suitable material. llach strip has wide and narrow portions 3 and 4, respectively, the wide p01 tions 3 being arranged midway between the sides of the tread to present a broad wearing surface to the road and also to cause said tread t-o snugly fit the curvature of the tire A. In braiding the strips 2 together, openings 5 ar.- left, so that sand or other deleterious substances working in between the tire and Specification of Letters JEatent.

- these parts will not rot out.

Patented Feb. 29, 1916.

Serial No. 865,052.

before damaging the tire. The spaces 5 also admit hir to dry up any moisture working in between the tire and the tread, so that Said air also prevents the tire A from unduly heating and blowing out on the road. Tl spaces 5 also materially lighten the tread without diminishing its strength or wearing qualities. I

6 designates rivets which firmly unite the intersecting portions of the strips 2. The outer ends of said rivets'hat e burred heads 7, which protect the strips 2 from wear and prevent the tire from skidding.

8 designates a pair of split rings passing through loop portions 9 of the strips 2.

Each ring 8 has right and left threads at its ends to receive a turnbuckle or an elongated nut 10, whereby said rings are tightened to draw the tread 1 firmly about the tire A.

While the rings 8 are ordinarily sufficient to hold. the tread upon the tire A, to insure absolute safety we provide one of said rings with a plurality of clips 11, slidable upon said ring and adapted to engage one of the inturned lips I) of the rim B, against which it is firmly held by the inflated tire A and by the strips 2 which overlap and underlap the corners of the hooks.

While we have shown the clips 11 shaped to engage a clencher tire, it is obvious that they may be formed for use in connection with straight-wall or other types of tires without departing from the spirit or scope of the invention. The tread is placed in position upon the tire A, when the same is deflated, so that the clips 11 can be readily inserted between the tire A. and the rim B. The clips 11 each have a pair of hooks engaged witirthe rings 9, which hooks are spaced apart a distance slightly greater than the width of the strips '2 so as to receive the latter in such space.

described thepreferred form of the invention, we of course reserve the right to make such changes in the combination, arrangement and proportion of parts as properly fall within the spirit and scope of the claim.

Having thus described our invention, hat We claim and desire to secure by Letters Patent, is:

In a tire tread, side rings, flexible strips wound over and under the rings, and attaching clips each having a pair of hooks engaged with the rings, said hooks being spaced apart a distance slightly greater than the Width of the strips so as to receive one of the latter in said space and said strips being engaged over and under the side edge and end portions of the hooks, each of said and as many points as desired throughout the entire circumference of the tread.

In testunony whereof We aflix our slgnatures in the presence of wltnesses.

GUSTAFv A. HAGSTROM. EMANUEL HAGSTROM.

Witnesses:

F. G. FIsGI-IER, L. J. FISCHER, CARL E. LoNN UIs/r, R. V. PAMORSKI.

Copies of this patent may be obtained for five cents each, by addressing the "Commissioner of Iatents, Washington, D. C. 

